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2 CompoWay/F Communications Procedures
(2) Bit Position
Bit access is not supported. Fixed to “00.”
(3) Number of Read Data Items (Variable Type + Read Data + Bit Position Counted As 1 Item)
Composite Read
Composite Read
Double word
(variable type C0,
C1, or C3)
Word
(variable type 80,
81, or 83)
Double word
(variable type C0,
C1, or C3)
Word
(variable type 80,
81, or 83)
20
0
11
14
19
1
10
15
18
2
9
16
18
3
8
17
17
4
7
18
17
5
6
19
16
6
8
20
15
7
4
21
15
8
3
22
14
9
2
23
14
10
1
24
13
11
0
25
12
12
12
13
(4) Response Code
• Normal Completion
Response code
0000
Name
Normal completion
Description
No errors were found.
Error name
Command too short
Area type error
Response too long
Cause
The command is too short.
The variable type is wrong.
The number of elements exceeds
the maximum.
Bit position is not "00."
Non-volatile memory error
• Error Occurred
Response code
1002
1101
110B
1100
2203
Parameter error
Operation error
E5@C Digital Temperature Controllers Communications Manual (H175)
2 - 11
2
2-3-3 Composite Read from Variable Area
Read data length
Number of read data items
For double word (variable type C0, C1, or C3)
20 max.
For word (variable type 80, 81, or 83)
25 max.
Note: The following table gives the maximum number of read data items when double-word data and word data are
used together.
2-3 Detailed Description of the Services
(1) Variable Type and Read Start Address
For details on variable types and read start addresses, refer to Section 3 Communications Data for
CompoWay/F.